The spirals inside of the cup are pretty shallow but when the cup is full of water it swirls pretty well when draining out. This thing won't allow me to attach photos or add my email address so you can see them.

Hello Jim - Height 11.5" Width 6" Funnel Width 1" reducing to .5".

I use them once. I suppose you could reuse them depending on what you are filtering and how dirty they get. If you are filtering spirits the alcohol should sterilize them.

I use it once - than it’s clogged